309 lines
11 KiB
Python
Executable file
309 lines
11 KiB
Python
Executable file
#!/usr/bin/env python
|
|
#
|
|
# Command line tool to take in ESP-IDF sdkconfig files with project
|
|
# settings and output data in multiple formats (update config, generate
|
|
# header file, generate .cmake include file, documentation, etc).
|
|
#
|
|
# Used internally by the ESP-IDF build system. But designed to be
|
|
# non-IDF-specific.
|
|
#
|
|
# Copyright 2018 Espressif Systems (Shanghai) PTE LTD
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http:#www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
from __future__ import print_function
|
|
import argparse
|
|
import sys
|
|
import os
|
|
import os.path
|
|
import tempfile
|
|
import json
|
|
|
|
import gen_kconfig_doc
|
|
import kconfiglib
|
|
|
|
__version__ = "0.1"
|
|
|
|
if "IDF_CMAKE" not in os.environ:
|
|
os.environ["IDF_CMAKE"] = ""
|
|
|
|
|
|
def main():
|
|
parser = argparse.ArgumentParser(description='confgen.py v%s - Config Generation Tool' % __version__, prog=os.path.basename(sys.argv[0]))
|
|
|
|
parser.add_argument('--config',
|
|
help='Project configuration settings',
|
|
nargs='?',
|
|
default=None)
|
|
|
|
parser.add_argument('--defaults',
|
|
help='Optional project defaults file, used if --config file doesn\'t exist. '
|
|
'Multiple files can be specified using multiple --defaults arguments.',
|
|
nargs='?',
|
|
default=[],
|
|
action='append')
|
|
|
|
parser.add_argument('--create-config-if-missing',
|
|
help='If set, a new config file will be saved if the old one is not found',
|
|
action='store_true')
|
|
|
|
parser.add_argument('--kconfig',
|
|
help='KConfig file with config item definitions',
|
|
required=True)
|
|
|
|
parser.add_argument('--output', nargs=2, action='append',
|
|
help='Write output file (format and output filename)',
|
|
metavar=('FORMAT', 'FILENAME'),
|
|
default=[])
|
|
|
|
parser.add_argument('--env', action='append', default=[],
|
|
help='Environment to set when evaluating the config file', metavar='NAME=VAL')
|
|
|
|
args = parser.parse_args()
|
|
|
|
for fmt, filename in args.output:
|
|
if fmt not in OUTPUT_FORMATS.keys():
|
|
print("Format '%s' not recognised. Known formats: %s" % (fmt, OUTPUT_FORMATS.keys()))
|
|
sys.exit(1)
|
|
|
|
try:
|
|
args.env = [(name,value) for (name,value) in (e.split("=",1) for e in args.env)]
|
|
except ValueError:
|
|
print("--env arguments must each contain =. To unset an environment variable, use 'ENV='")
|
|
sys.exit(1)
|
|
|
|
for name, value in args.env:
|
|
os.environ[name] = value
|
|
|
|
config = kconfiglib.Kconfig(args.kconfig)
|
|
|
|
if len(args.defaults) > 0:
|
|
# always load defaults first, so any items which are not defined in that config
|
|
# will have the default defined in the defaults file
|
|
for name in args.defaults:
|
|
print("Loading defaults file %s..." % name)
|
|
if not os.path.exists(name):
|
|
raise RuntimeError("Defaults file not found: %s" % name)
|
|
config.load_config(name, replace=False)
|
|
|
|
if args.config is not None:
|
|
if os.path.exists(args.config):
|
|
config.load_config(args.config)
|
|
elif args.create_config_if_missing:
|
|
print("Creating config file %s..." % args.config)
|
|
config.write_config(args.config)
|
|
elif args.config is None:
|
|
raise RuntimeError("Config file not found: %s" % args.config)
|
|
|
|
for output_type, filename in args.output:
|
|
temp_file = tempfile.mktemp(prefix="confgen_tmp")
|
|
try:
|
|
output_function = OUTPUT_FORMATS[output_type]
|
|
output_function(config, temp_file)
|
|
update_if_changed(temp_file, filename)
|
|
finally:
|
|
try:
|
|
os.remove(temp_file)
|
|
except OSError:
|
|
pass
|
|
|
|
|
|
def write_config(config, filename):
|
|
CONFIG_HEADING = """#
|
|
# Automatically generated file. DO NOT EDIT.
|
|
# Espressif IoT Development Framework (ESP-IDF) Project Configuration
|
|
#
|
|
"""
|
|
config.write_config(filename, header=CONFIG_HEADING)
|
|
|
|
|
|
def write_header(config, filename):
|
|
CONFIG_HEADING = """/*
|
|
* Automatically generated file. DO NOT EDIT.
|
|
* Espressif IoT Development Framework (ESP-IDF) Configuration Header
|
|
*/
|
|
#pragma once
|
|
"""
|
|
config.write_autoconf(filename, header=CONFIG_HEADING)
|
|
|
|
|
|
def write_cmake(config, filename):
|
|
with open(filename, "w") as f:
|
|
write = f.write
|
|
prefix = config.config_prefix
|
|
|
|
write("""#
|
|
# Automatically generated file. DO NOT EDIT.
|
|
# Espressif IoT Development Framework (ESP-IDF) Configuration cmake include file
|
|
#
|
|
""")
|
|
|
|
def write_node(node):
|
|
sym = node.item
|
|
if not isinstance(sym, kconfiglib.Symbol):
|
|
return
|
|
|
|
# Note: str_value calculates _write_to_conf, due to
|
|
# internal magic in kconfiglib...
|
|
val = sym.str_value
|
|
if sym._write_to_conf:
|
|
if sym.orig_type in (kconfiglib.BOOL, kconfiglib.TRISTATE) and val == "n":
|
|
val = "" # write unset values as empty variables
|
|
write("set({}{} \"{}\")\n".format(
|
|
prefix, sym.name, val))
|
|
config.walk_menu(write_node)
|
|
|
|
|
|
def get_json_values(config):
|
|
config_dict = {}
|
|
|
|
def write_node(node):
|
|
sym = node.item
|
|
if not isinstance(sym, kconfiglib.Symbol):
|
|
return
|
|
|
|
val = sym.str_value # this calculates _write_to_conf, due to kconfiglib magic
|
|
if sym._write_to_conf:
|
|
if sym.type in [kconfiglib.BOOL, kconfiglib.TRISTATE]:
|
|
val = (val != "n")
|
|
elif sym.type == kconfiglib.HEX:
|
|
val = int(val, 16)
|
|
elif sym.type == kconfiglib.INT:
|
|
val = int(val)
|
|
config_dict[sym.name] = val
|
|
config.walk_menu(write_node)
|
|
return config_dict
|
|
|
|
|
|
def write_json(config, filename):
|
|
config_dict = get_json_values(config)
|
|
with open(filename, "w") as f:
|
|
json.dump(config_dict, f, indent=4, sort_keys=True)
|
|
|
|
|
|
def write_json_menus(config, filename):
|
|
result = [] # root level items
|
|
node_lookup = {} # lookup from MenuNode to an item in result
|
|
|
|
def write_node(node):
|
|
try:
|
|
json_parent = node_lookup[node.parent]["children"]
|
|
except KeyError:
|
|
assert node.parent not in node_lookup # if fails, we have a parent node with no "children" entity (ie a bug)
|
|
json_parent = result # root level node
|
|
|
|
# node.kconfig.y means node has no dependency,
|
|
if node.dep is node.kconfig.y:
|
|
depends = None
|
|
else:
|
|
depends = kconfiglib.expr_str(node.dep)
|
|
|
|
try:
|
|
is_menuconfig = node.is_menuconfig
|
|
except AttributeError:
|
|
is_menuconfig = False
|
|
|
|
new_json = None
|
|
if node.item == kconfiglib.MENU or is_menuconfig:
|
|
new_json = {"type": "menu",
|
|
"title": node.prompt[0],
|
|
"depends_on": depends,
|
|
"children": []
|
|
}
|
|
if is_menuconfig:
|
|
sym = node.item
|
|
new_json["name"] = sym.name
|
|
new_json["help"] = node.help
|
|
new_json["is_menuconfig"] = is_menuconfig
|
|
greatest_range = None
|
|
if len(sym.ranges) > 0:
|
|
# Note: Evaluating the condition using kconfiglib's expr_value
|
|
# should have one result different from value 0 ("n").
|
|
for min_range, max_range, cond_expr in sym.ranges:
|
|
if kconfiglib.expr_value(cond_expr) != "n":
|
|
greatest_range = [min_range, max_range]
|
|
new_json["range"] = greatest_range
|
|
|
|
elif isinstance(node.item, kconfiglib.Symbol):
|
|
sym = node.item
|
|
greatest_range = None
|
|
if len(sym.ranges) > 0:
|
|
# Note: Evaluating the condition using kconfiglib's expr_value
|
|
# should have one result different from value 0 ("n").
|
|
for min_range, max_range, cond_expr in sym.ranges:
|
|
if kconfiglib.expr_value(cond_expr) != "n":
|
|
greatest_range = [int(min_range.str_value), int(max_range.str_value)]
|
|
|
|
new_json = {
|
|
"type": kconfiglib.TYPE_TO_STR[sym.type],
|
|
"name": sym.name,
|
|
"title": node.prompt[0] if node.prompt else None,
|
|
"depends_on": depends,
|
|
"help": node.help,
|
|
"range": greatest_range,
|
|
"children": [],
|
|
}
|
|
elif isinstance(node.item, kconfiglib.Choice):
|
|
choice = node.item
|
|
new_json = {
|
|
"type": "choice",
|
|
"title": node.prompt[0],
|
|
"name": choice.name,
|
|
"depends_on": depends,
|
|
"help": node.help,
|
|
"children": []
|
|
}
|
|
|
|
if new_json:
|
|
json_parent.append(new_json)
|
|
node_lookup[node] = new_json
|
|
|
|
config.walk_menu(write_node)
|
|
with open(filename, "w") as f:
|
|
f.write(json.dumps(result, sort_keys=True, indent=4))
|
|
|
|
|
|
def update_if_changed(source, destination):
|
|
with open(source, "r") as f:
|
|
source_contents = f.read()
|
|
if os.path.exists(destination):
|
|
with open(destination, "r") as f:
|
|
dest_contents = f.read()
|
|
if source_contents == dest_contents:
|
|
return # nothing to update
|
|
|
|
with open(destination, "w") as f:
|
|
f.write(source_contents)
|
|
|
|
|
|
OUTPUT_FORMATS = {"config": write_config,
|
|
"header": write_header,
|
|
"cmake": write_cmake,
|
|
"docs": gen_kconfig_doc.write_docs,
|
|
"json": write_json,
|
|
"json_menus": write_json_menus,
|
|
}
|
|
|
|
|
|
class FatalError(RuntimeError):
|
|
"""
|
|
Class for runtime errors (not caused by bugs but by user input).
|
|
"""
|
|
pass
|
|
|
|
|
|
if __name__ == '__main__':
|
|
try:
|
|
main()
|
|
except FatalError as e:
|
|
print("A fatal error occurred: %s" % e)
|
|
sys.exit(2)
|